PDA1000 – 1 GS/s, 8 bit, 1 Channel, PCI X, Digitizer Board

The PDA1000 is the state of the art in ultra high-speed data acquisition waveform capturing systems.  This waveform digitizer features an analog bandwidth of DC to 500 MHz and digitization rates of up to 1 GHz.  It employs an extraordinary memory depth of 256 megasamples for capturing extremely long events.  The entire memory may be used as a giant FIFO for acquiring data directly to either the SAB or PCI bus.

The PDA1000 is a 64-bit DAQ PCI compatible board equipped with standard 'Plug and Play' features common in PCI systems.  It is capable of Bus Master DMA data transfers at a sustained rate of 250 megabytes/second.  It can also operate in 32-bit PCI slots in which case the transfer rate will be limited to about 120 megabytes per second.

The PDA1000 digitizer board incorporates the advanced Signatec Auxiliary Bus (SAB) that allows for data transfers of up to 500 megabytes/second.  This allows for the high-speed transfer of data to fast processor boards, such as Signatec's PMP1000, or other peripherals.  The SAB also incorporates device control features for operating the PDA1000 independent of the host bus.

The PDA1000 is equipped with an interconnect port to allow multiple PDA1000 DAQ boards to be interconnected in a Master/Slave configuration.  Up to three PDA1000 Slave DAQ boards may be operated with one Master.  Master/Slave connections are via a ribbon cable that connects at the top of the board.  In this configuration the clock and trigger signals from the Master drive the Slave boards so that data sampling on all boards occurs simultaneously.

The PDA1000 has six software selectable signal amplitude ranges from a maximum of 3.2 volts down to 200 millivolts full scale.  Extreme care was taken in the design of the front-end analog circuitry to minimize noise and distortion.

External clock and trigger signals are provided via SMA connectors on the back bracket.  Also provided is a user selectable digital output signal for synchronization purposes.  Effectively, eleven internal clock frequencies may be selected from 1.0 GHz down to 977 kHz in factors of 2.

The PDA1000 supports single shot, segmented, and pretrigger triggering modes with delayed triggering or pretrigger samples.


Product Specifications


Product: PDA1000 Full Data Sheet
Update: Revision 1.00 - 05/16/2005
File Size: 368 KB



Input Signals
     Analog Signal Input
     External Trigger In
     External Clock In, Clock Out,
     Trigger Out
     External Connectors: 3 SMA
 
Digital Output
     Synchronized Trigger
     ADC Clock Div 8
     External Connectors: 1 SMA
 
Analog Input
     Full Scale Voltage Ranges (p-p): 200mV, 333mV, 600mV, 1.00V, 1.80V, 3.00V
     Impedance: 50 ohms
     Bandwidth: 500 MHz
     Equivalent Noise: 0.5 lsb RMS (typical)
     Coupling: AC or DC
 
External Trigger
     Impedance: 50 ohms / 1k ohms
     Trigger Level: +/- 250 mV @ 50 ohms, +/- 2.5 V @ 1k ohm
     Adjustment Method: via 8 bit DAC
     Bandwidth: 350 MHz @ 50 ohms, 10 MHz @ 1k ohms
     Coupling: DC
 
External Clock
Clock In
     Signal Type: sine or square wave
     Impedance: 50 ohms to ground
     Frequency: 200 MHz to 1 GHz
     Amplitude: 100 mV p-p to 2.0 V p-p
Clock Out
     Type: TBD
     Max Frequency: 250 MHz
     Suggested Load: 50 ohms
     Amplitude: TBD
 
DC Offset Voltage
     8 bit DAC, +/- 270mV at ADC Input
 
Digitizer
     Voltage Range: +/- 250 mV full scale
     Resolution: 8 bits
     Linearity, Integral: +/- 0.5 lsb max.
     Linearity, Differential: +/- 0.75 lsb max.
    Aperture Jitter: <0.5 pS typical
    Internal Clock Rates: 1 GHz down to 976.6 kHz, in factors of 2
    Internal Clock Accuracy: +/- 0.01%
 
Trigger Modes
     Post-Trigger: single start trigger fills active memory
     Pre-Trigger: single trigger stops acquisition
     Segmented: start trigger for each memory segment
 
Trigger Options
     Pre-Trigger Samples: samples prior to trigger are stored; up to 32K samples
 
     Delayed Trigger: delay from trigger to data storage; up to 512K digitizer clock samples
 
Memory
     Active Size: Up to 256 Megasamples
     Segment Size: Up to 128 Megasamples
     Start Address Setting: Anywhere in memory
     Segment Re-Arm Time: 150 nanoseconds
     Addressing: DMA transfers from starting address
     Memory Address (PC): Plug and Play selected
 
I/O Addressing
     PCI Controller Address: 64 bytes, Plug and Play selected
     Control/Status Registers: 32 bytes, Plug and Play selected
 
Signatec Auxiliary Bus
     Data Transfer Modes: Block or Packet
     Data Transfer Rates: 500 MB/s max @ 64 bits
     Data Direction: Output only
 
Power Down Features
     Off Mode: Board Deactivated; Power usage less than 350 mW
     Power Down: Acquisition circuits deactivated; power reduced by 2/3
     Thermal Shutdown: ADC temp. greater than 65C deactivates power
 
Power Requirements
     +12: 100 mA max
     -12: 10 mA max
     +5: 2.5A max. (acquisition) ; 0.7A max. (power down)
     +3.3: 3A max
 
Absolute Maximum Ratings
     Analog Inputs: +/- 5 volts
     Trigger Input: +/- 5 volts
     Clock Input: 5 volts peak to peak
     Ambient Temperature: 0 to 50C